<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

const animationDuration = 6000

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    },
     chartData: {
           type: Object,
           required: true
         },


  },
  data() {
    return {
      chart: null
    }
  },
 watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val)
      }
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart()
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
   setOptions(chartData) {
    console.log(chartData)
    this.chart.setOption({
            tooltip: {
              trigger: 'axis',
              axisPointer: { // 坐标轴指示器，坐标轴触发有效
                type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
              }
            },
            grid: {
              top: 10,
              left: '2%',
              right: '2%',
              bottom: '3%',
              containLabel: true
            },
            xAxis: [{
              type: 'category',
              data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
              axisTick: {
                alignWithLabel: true
              }
            }],
            yAxis: [{
              type: 'value',
              axisTick: {
                show: false
              }
            }],
            series: [{
              name: '销售额',
              type: 'bar',
              stack: 'vistors',
              barWidth: '60%',
              data: chartData.saleAmountThisWeekGroupByDay,
              animationDuration
            }, {
              name: '销量',
              type: 'bar',
              stack: 'vistors',
              barWidth: '60%',
              data: chartData.saleCountThisWeekGroupByDay,
              animationDuration
            }]
          })

   },
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')
      this.setOptions(this.chartData)
  }
  }
}
</script>
